from tkinter import *

print('Введите начальную координату x:')
x = int(input())
print('Введите начальную координату y:')
y = int(input())
print('Введите коэфицент увеличения n:')
n = int(input())

coords = [0, 0, 10, 0, 10, 10, 20, 10, 20, 30, 10, 30, 10, 20, 0, 20, 0, 0]

if n == 0 and x>=0 and x<=500 and y>=0 and y<=50:
    pass
else:
    if n > 0 and 0*n+x>=0 and 0*n+y>=0 and 20*n+x<=500 and 20*n+y<=500:
        pass
    else:
        if n < 0 and 20*n+x>=0 and 20*n+y>=0 and 0*n+x<=500 and 0*n+y<=500:
            pass
        else:
            print('Размер фигуры превышает максимальный размер поля')
            exit()

root = Tk()
root.title('ИТ марафон')
root.geometry('500x500')

canvas = Canvas(bg='white', width=500, height=500)
canvas.pack(anchor=CENTER, expand=1)

canvas.create_polygon(coords[0] *n+x, coords[1] *n+y,
                      coords[2] *n+x, coords[3] *n+y,
                      coords[4] *n+x, coords[5] *n+y,
                      coords[6] *n+x, coords[7] *n+y,
                      coords[8] *n+x, coords[9] *n+y,
                      coords[10]*n+x, coords[11]*n+y,
                      coords[12]*n+x, coords[13]*n+y,
                      coords[14]*n+x, coords[15]*n+y)

root.mainloop()
